Download Header FIles

Hi iv'e downloaded Visual C++ however all of the basic header files such as <iostream> and <cstdlib> haven't downloaded. DOes anybody know wheer I can download all of the basic c++ header files. I know how to install them and I am to lazy to redownload visual c++ or a different compiler

All I know is that the only header files that installed are <crtversion> and <srv>. None of the others have been installed. If anybody can tell me whats gone wrong or just where I can download the basic header files for c++ that would be awesome

I have checked both of the stated areas (C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Include and C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include) and I cannot find any of the header files <iostream>, <cstdlib>, <cmath> in either